Philip D. Flenner, P.E., has spent more than 40 years in welding qualifications and training, engineering training, power plant maintenance, and performance assessment. He has developed several guidelines on material control, repair methods, and the usage of Codes and Standards for the power industry. Mr. Flenner participates significantly on several piping Codes, welding qualification Codes, and materials Codes for nearly 40 years, and has gained the honor of ASME Life Fellow during his career. He has taught multiple ASME Training & Development Courses for nearly 30 years. He has participated in industry research on the effects of PWHT on ASME materials. He has been instrumental in sponsoring changes in the Code requirements covering preheating and PWHT. John P. Swezy Jr. is the founder of Boiler Code Tech, LLC, which provides consulting services for ASME Non-Nuclear Pressure Equipment. He has over 35 years’ experience in steam and combustion driven prime mover electrical generation plants and associated engineering auxiliary systems and over 20 years of experience in developing and implementing detailed procedures, work instructions, and QC programs for design, welded fabrication, repairs, and alterations of pressure equipment following ASME, B31, NBIC, API, DOT and various International Codes and Standards. He also has extensive experience in the area of nondestructive examination. Mr. Swezy has been a member of various ASME Codes & Standards Committees since 1996. He is a National Board Commissioned Boiler and Pressure Vessel Inspector and an American Welding Society Certified Welding Inspector (CWI). Mr. Swezy served honorably in the U.S. Navy in various engineering capacities onboard nuclear powered submarines, completing his service as the Machinery Division Leading Chief Petty Officer. He earned his Associate of Science degree from the University of the State of New York. Joe W. Frey P.E., is a consulting engineer with over 37 years of experience in the installation, inspection, maintenance, and repair of piping systems. He has specialized in emergency response to failures, providing fitness for service (FFS) evaluations, repair plans, and path forward assistance for catastrophic failures in piping and coal silos. Mr. Frey also has extensive experience in fire damage assessment in refineries and chemical plants. He is currently the Vice Chair of the B31 Code committee, past chair of B31.1, and a member of numerous other piping code subcommittees. Mr. Frey has been instrumental in sponsoring changes in the Code requirements addressing piping maintenance. Walter J. Sperko, P.E., is President of Sperko Engineering Services, Inc., a consulting firm specializing in metal fabrication technology. He is Chairman of Standards Committee IX and a member of several of its subgroups; a member of Standards Committee III and its Subgroup on Materials, Fabrication and Examination; a member of the B31 Standards Committee; and the past Chairman of the AWS International Standards Activities Committee, which represents the US at meetings of ISO/TC44, Welding and Allied Processes and a member of AWS Technical Activities Committee. He is a professional engineer registered in several states and holds five US patents.